William haytiiorn



(No Modem l A W. HAYTHORN. AUTOMATIC VALVE FOR STEAM RADTATORS.

No. 467,883. Patented JamZ, 1892.

TTT

l gis-47 lUNITED STATES PATENT OFFICE.

VILLIAM IIAYTIIORN, OF CHICAGO, ILLINOIS, ASSIGNOR TO IILLIAM SOVY IIAYTIIORN, OF SAME PLACE.

AUTOMATIC VALVE FOR STEAM-RADIATORS.

SPECIFICATION forming part of Letters Patent No. 467,883, dated January 26, 1892. Application led February 13, 1890- Serial No. 340,247. (No model.)

To all whom t may concern: tween the upper and lower chamber is cone it known that I, IVILLIAM IIAYTHORN, tracted, as at as, and screw-threaded on the a citizen of the United States, residing at Chiinterior surface for the reception of the corcago, in the county of Cook and State of Illirespondingly screw-threaded tubular plug E.

5 nois, have invented certain new and useful This plug is provided in the underside with 55 Improvements in an Automatic Valve for a spherical seat b. The lower part of the Steam-Radiators, of which the following is a chamber a2 below the ball-Valve is provided full, clear, and exact description, that will enwith the arms b', which extend from the inable others to make and use the same, referterior surface to the center hub b2, (see Fig.

ro ence being had to the accompanying draw- 3,) leaving the passage open, said hub being 6o ings, forming a part of this specification. provided with the aperture b3 for the recep- The object of this invention is to provide tion of the guide-pin b4, attached to and proa valve for the discharge or return end of jectiug downward from the ball-valve. A steam-radiators, whereby the return-passage similar guide-pin (Z is attached to the upper r 5 is automaticallyclosed by the back-pressure side of the ball-valve and extends up into the 65 when the supply in the radiator is shut off screw-plug E. By this arrangement the balland opened in the same manner when the valve is kept in position to be'properlyseated. live steam is again let into the radiator. This The ball-valve is shown in its lowest or norvalve is intended to take the place of the malposition, the discharge-passage being now 2o ordinary globe-valve commonly used in the open through the valve-casinginto the pipe F. 7o discharge-passage of radiators, and obviates lVhen the supply-valve on the radiator is all the objectionable features attending the closed and the pressure in the radiator diminuse of such valves. ished so that the back-pressure will enter i As a general thing in operating radiators through the pipe F, the ball-valve is auto- 2 5 the steam-supply valve is shutoff when suflimatically forced up into its spherical seat in 75 cient heat has been radiated; but the valve the screw-plug E and the return-passage on the discharge end is left open and the reclosed. I'Vheu the steam is entirely shut oft' sult is that the back-pressure through the refrom the system of radiators and connectingturn fills the radiator with the water of conpipes, the ball-valve will gravitate to its low- 3o densation, the greater part of which is liable est seat and allow all the water of condensa- So to remain in the radiator when the same betion to escape, and thus obviate all danger of comes cold and the pipes frozen and bursted. freezing.

Figure l is a vertical section of a valve em- The removable screw-cap G, inserted in the bodying my improved features; Fig. 2, a detop of the valve-casing, provides for conven- 3 5 tached detail; and Fig. 3, a horizontal section ient access for the insertion and removal of 85 in plane 3, Fig. l, looking in the direction inthe tubular plug E and the ball-valve. dicated by the arrows, The ball-valve will ordinarily be com posed Referring' to the drawings, A represents the of vulcanized rubber; but any other material upper part of the valve-casing, and B the suitable for the purpose may be used.

4o lower part, which is formed integral there- Having thus described my inventiou,what 9o with. The upper part of the casing is pro- I claim as new, and desire to secure by Letvided with the horizontal threaded extension ters Patent, is-- a, in which is inserted the correspondingly 1. The combination of a valve-casing havscrew-threaded end of the discharge-pipe C ing two chambers, the passage between said 45 from the radiator, and which discharges into chambers being contracted, a tubular screw- 95 the chamber a. The chamberoin the lower plug provided with a spherical seat in the part of the globular casing contains the ballunder side and inserted in said contracted valve D, which is of a less diameter than the part, a valve located in the chamber below inclosing wall, so as to leave a space all the plug, a number of arms extending from 5o around, as shown in Fig. l. The passage bethe sides of the casing to a central hub below 10o the valve, a guide-pin attached to the valve and extending through the hub, an inlet-opening, and an aperture in the valve-casing having a removable cover at the rear of the valveseat, substantially as described.

low the plug, an inlet-opening above the plug,

an outlet below the valve, and an opening in the valve-casing above or at the rear of the plug, said opening having a removable cover, substantially as described.

WILLIAM 'I-IAYTHORN.

Witnesses;

L. M. FREEMAN, J. P. DoNALsoN. 

